* Find your perfect fit easily using the custom plastic sizing rings available in sizes 6 to 13 * * Ensure the highest data accuracy and comfort by testing your size before purchasing the actual ring * * Get the cost of the kit back automatically as a voucher when you buy your Oura Ring 5 * * Confirm your best fit by wearing the sizer for 24 hours to account for daily finger changes * * Share the kit with friends and family so they can find their ideal size too
